Spalled Joints & Cracks
If you have spalled joints and cracks, you need to perform:
Partial Depth Patch Repairs
Partial depth repair (PDR) is a shallow depth repair procedure used to address pavement deterioration that does not fully extend through a concrete slab. This method is used to repair spalling and fraying of concrete slab edges at joints and cracks as well as localized scaling. Spalling, which can occur on both jointed and continuously reinforced pavements, reduces pavement serviceability and can become hazardous to highway users. This type of deterioration can be caused by a number of factors including late sawing, poor joint design, inadequate joint/crack maintenance and material durability issues such as Alkali-Silica Reactivity (ASR). Once initiated, spalls tend to grow under repeated thermal stresses and traffic loadings.
The purpose of PDR is to repair surface defects, reestablish joint reservoirs and restore localized areas of deterioration. PDR replaces unsound concrete to restore rideability and discourages further deterioration. Further, PDR is an excellent preventative maintenance technique as it is proven to last more than 20 years when properly constructed using quality materials and workmanship.
Resources
CPR: Rebuilt to Last: A progressive concrete pavement preservation strategy improves city streets in Minneapolis
City streets in Minneapolis benefited from the implementation of concrete pavement preservation (CPP) techniques. The strategy focused on rehabilitating structurally sound residential streets using methods such as diamond grinding, dowel bar retrofit (DBR), full depth repair (FDR), partial depth repair (PDR), cross/slot stitching, joint resealing, and crack resealing. This approach was chosen for its sustainability and cost-effectiveness, enhancing road safety and extending pavement lifespan by up to 25 years.
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City/Municipal
Concrete Pavement Preservation and Restoration
Sustainability/Environmental
CPR: Rebuilt to Last: Infrastructure rehabilitation in Winnipeg, Manitoba, Canada
Winnipeg, Manitoba, saw significant improvements in road smoothness and durability through comprehensive Concrete Pavement Rehabilitation (CPR) initiatives. The project encompassed several techniques, including diamond grinding, dowel bar retrofit (DBR), partial depth repair (PDR), full depth repair (FDR), and transverse joint sealing. These methods were chosen over an asphalt overlay due to their cost-effectiveness, resulting in significant improvements in road smoothness and durability.
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Highway
Concrete Pavement Preservation and Restoration, Diamond Grinding, Dowel Bar Retrofit, Full & Partial Depth Repair, Joint and Crack Resealing
Structural/Material Issues
CPR: Built to Last: Provincial Trunk Highway #9, Selkirk, Manitoba, Canada
Full depth repair (FDR), partial depth repair (PDR) and diamond grinding were used to repair Provincial Trunk Highway 9 in Selkirk, Manitoba, Canada. The 32-year-old concrete pavement required rehabilitation on a two-mile section, due to transverse joint deterioration and uneven wear of the existing seal coat causing a rough ride.
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Highway
Concrete Pavement Preservation and Restoration, Diamond Grinding, Full & Partial Depth Repair
Smoothness
CPR: Rebuilt to Last: Interstate 15, Ogden, UT
In 2013, the Utah Department of Transportation (UDOT) began concrete rehabilitation on a 15-mile stretch of Interstate 15 in Ogden, UT. Concrete Pavement Preservation (CPP) methods selected for the project included partial and full panel patching, slab jacking, resealing, dowel bar retrofit (DBR) and diamond grinding. UDOT provided a safe, smooth ride while reducing costs.
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Highway
Diamond Grinding, Dowel Bar Retrofit
Structural/Material Issues
CPR: Rebuilt to Last: National Highway Route 60/MT200 in Great Falls, MT
The National Highway Route 60/MT200 is a four-lane highway located in Great Falls, MT that connects several small towns in central and eastern areas of the state. The project to make the roadway smooth and safe for drivers involved repairing approximately 12 lane mines of nine-inch Portland Cement Concrete (PCC). Methods included dowel bar retrofit, full depth repair, partial depth repair, diamond grinding and resealing. The project proved to be a cost-effective solution.
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Highway
Concrete Pavement Preservation and Restoration, Diamond Grinding, Dowel Bar Retrofit, Full & Partial Depth Repair, Joint and Crack Resealing
Structural/Material Issues, Sustainability/Environmental
CPR: Rebuilt to Last: Minnesota Department of Transportation utilizes full CPR toolbox and diamond grinding
Concrete Pavement Restoration (CPR) techniques were applied on I-94 between Stearns County State Aid Highway 75 and Trunk Highway 241. The project involved diamond grinding, full depth repair (FDR) and partial depth repair (PDR), joint resealing, crack resealing, and the introduction of Next Generation Concrete Surface (NGCS) to enhance ride quality and reduce noise.
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Highway
Concrete Pavement Preservation and Restoration, Diamond Grinding, Full & Partial Depth Repair, Joint and Crack Resealing
Smoothness, Structural/Material Issues, Sustainability/Environmental